Like Skype? Asustek is about to release two motherboards that with Asus TeleSky adapters that let you plug in any old analog telephone and use that to make Skype calls. Different from the USB Skype phones we've been seeing, this lets you salvage all those old cordless telephones you've had sitting around since the nineties.
The best part, besides supporting SkypeIn, SkypeOut, conference, call waiting, speed dial, and three way calling, is that even your parents will be able to figure this one out. Maybe.